How do I change the thermostat in my car?

I have a 2005 Corolla XRS. I find it a pain sometimes. I think the thermostat is under the alternator. How do I change it?|||there should be a hose coming from your radiator a big hose. it leads to your manifold. take that hose off and there%26#039;s your thermostat|||Heres a plan of attack. BRING TO A DEALER IF YOU DON%26#039;T KNOW WHAT YOUR DOING. there did that help?